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Gizmodo reader/potential vampire Shaun just popped this interesting graph in our email this morning, comparing the price of HP ink to other various fluids, some bodily in nature. He calculates that a $30 HP #45 black ink cartridge gives you 42ml, pricing out to $0.71/ml. Meanwhile, blood apparently costs $200 for 500ml from the Red Cross, pricing out to $0.40/ml.

The numbers are only more staggering as you realize that the blood of weekend Gizmodo writers, running at a constant 1:1 blood to alcohol ratio, is worth even less. Does that mean we can sell our blood at wholesale? Dealzmodo supplemental!